I was wondering the best was to use the DD-1 when setting gains on large amps. I wanna test the DD-1 for myself against the tpi440 just to see if I gain. The problem is the 2 amps being use AB 1100.1's are over the 15K output limit. My question is can I just unstrap the the 2 amps and just set the gain on the master amp, then strap them back? Just looking for the best way before I start testing.